Vacuum-producer.



Pat-famed Aug. 25, 1914.

dfi/.7 TTRNEY.

Application ed March i. Ssmr. .l 11 im?.

(ibm nf miv: which is 'mz? uw @ml winch has pwm oi Mar: fazsmefm than pentium ni the pipe 5i.

Pw fr l:

u in Y inflat 3', wiwi u.L the dguhar@ niet vnd of the Sw f n Cap "3; hav miams and is v if v(3 is provi had small and is productive of little expense, while the dirt is disposed of in a sanitary manner.

It Vis important that the jet .issuing from the cap 6 fills the section 1 from wall to wall, thus preventing any hack flow of air. The choke bored places l and 2 assist in pre- 'venting any back flow of air. Furthermore the jet must be so finely atomized that the passage. ot ...ir baclcwardlvt7 between the par ticles will he prevented. 7With an ordinary city water pressure, I have found that by em loving an opening 8 of three sixteeuths inc es diameter in its smallest part, and a section 1 of one and a half inches inside diameter, a strong flow of air will be caused to pass through the air inlet 3 into the barrel. Of coruse, if the jet issuing fromthe opening 8 should flow ydown the barrel without expending to the side walls thereof, no appreciable suction of air would be cfected, no matter what pressure would be employed to drive the jet. For this reason, as I have st ati'id, it important in the operation of the device to secure proper adjustment of the cap 6 on the pipe 5, for a slight variation of adjustment alters the character ot' the jet and reduces or increases its eliicieney. The cap 6 should, therefore, be' adjusted to suit the particular pressure of water employed.

The choke bored places 1 and 2 should ireferably be free from roughness. 1 have AVouud that b v having such portions curved and terminating in knife edges as shown in Fig. 2, the best results are obtainable. The outer ends of sections 1 and 2, that is, the ends at the left, as viewed in Fig'. 2, may be squared7 so as to permit a quick expansion of the current passing from said sections. l have found by practical demonstration that the choke bored portions 1 and 2 exert a material inllucnce in determining the suction through the air inlet-3. l have also found by practical leinonsi ration `that by having the barrel increase in diameter toward the discharge end is a material advantage over a barrel of one diameter' through out.

The air inlet may be disposed forward of th e position'shown in the drawings, or it may be to the rear of that position, but I have,

found the best effects obtained when the air inlet is located, shown, between the cap 6 and the place Where the `iet impinges against the wall of the section l. Where the air iulet is located wholly forward of the jet pro ducer, the device is self cleaning', which is not the case where the air inlet is partij,7 or wholly to the rear of the jet producer. Bv having said. inlet inclined toward the charco end of th readilv'cleaner, 'out' the dirt drawn therethrough.

i 'With/the use of my' invention house may it sb'ou-ld become clon' ed I open at its barrel, as shown, it may be be economically equipped for vacuum cleaning. and after being so equipped, it may be economically and conveniently cleaned and the refuse disposed of without handling and in a sanitary manner.

l do not limit my invention to the struc ture illustrated and described, as many moditications and changes, within the scope of the appended claims. may be made without departing from the spirit of my invention.

Having thus described my invention, what l claim and desire to secure by Letters Patent, is

1. In a suction apparatus, the combination with a fitting adapted to bc connected with a supply system and having a suction branch communicating therewith intermediate the presisme and discharge end, of a spray nozzie located within the fitting at the pressure side ot the opening of the suction branch and embodying two parallel fixed diaphrag'ms with a distance chamber between and having rentralopenings therein whose arcas are less than the areas in cross section of the adjacent, parts of the litting and the distance chamber, whereby a vacuum spra)T is produced.

2. A vacuum producer having a barrel discharge end and having an air inlet, and a conductor for eonveyingir fluid under pressure and having means for discharging a jet lengthwise into the barrel toward its discharge end, the barrel being` choke bored at a place between the place of entrance of the jet and the discharge end of the barrel.r the internal diameter of the barrel at the discharge side of said choke bored place lbeingngreater than at the inlet side of said choke. bored place.

3. A vacuum producer having a barrel open at its discharge end and having an air inlet.y and a conductor for conveying fluid under pressure and having means for discharging lengthwise into the barrel toward its discharge end a jet which expands laterally to the Walls of the barreh' the barrel being choke bored at a place between the pl ace of Contact of the jet with the walls and the discharge end of the barrehthe internal diameter of the barrel at the discharge side of the choke bored place being greater than at. the inlet side of said choke bored place.

4. A vacuum producer having a barrel open at its discharge end and having an au' inletg and a conductor for conveyingr Huid un-'ler pressure and hav-ingI means for dis- :harg'iug lengthwise into the barrel toward its discharge end a jet which expands laterally to the Walls of the barrel, the barrel being choke bored at a place between the place of contact of the jet with the walls and the discharge end of the barrel. the internal diameter of the barrel at the discharge side of the choke bored place bein f eater than at the inlet side thereof, an t e air inlet floss in d' in a cond-notion for =fliiidinidgr` p gassin-e. 'and a:

thef inner ond l. sul-'e und is fi 19.5.5 nokov horrid fportfi'on of.

than the intcrnzil diametri' ni' lln` nfnnlucor nt tho choke borcrl plauso.

9. In n jL't I'orinr for n mrunix: ).nwninvcr. n Conflnclor for linirl :nnli-r nrc-inw ll-.ixiz a choke bored poi-lion 'n1nn\'|.n.l.-l @nrwl illu inlet, siilu Incl-rol mul trrlninnling knifv migo, :nul lnningf u (11.1: :n iin: L!

rvr rml if 'iliv -oinlncior willi nn axial ili nin-ning und n ulnnnlwr lwtn'rcn .sniil owning' :unl tlm chulaz bnrml portion of groan-i' fliznnoivr intvrnnily linnn 1li@ intvrnnl (linmoirr of lw Cmnlzmtor :it the (flinke borrd portion.

10. Tn a jctfornicr'or :i vncnuin proxlnror, :i conductor for fluid under prcsinro having n choke bored portion roncavously vnrvul :1ttlic inlot sido thereof, and lming n longitudinally adjustable cap at the discharge rnd of the conductor with an axial lisclmrge opening, the cap having achamber volnlnunicnting with the chokebored port-ion und with said axial o enng of greater diameter than the choke cred portion.

l1. In u. jet former for a vacuum producer, a comlucior for luill under pressure having n choke bored portion concavonsly rnrvod at llio irile siflo thereof and term]-4 'nnting in u knife. edge., and having a long:- Y'Lumally mlgustable cap at the discharge EUGENE A. SCENCK' `Witnesses B. HOUSE, FLORENCE M. Vxsxm. 

